GE 745 TRANSFORMER MANAGEMENT RELAY - Page 240

8-30 745 Transformer Management Relay GE Power Management
8.3 MODBUS MEMORY MAP 8 COMMUNICATIONS
8
TOTAL
HARMONIC
DISTORTION
0420 Winding 1 Phase A Total Harmonic Distortion 0.0 to 99.9 0.1 % ƒo F2 ---
0421
Winding 1 Phase B Total Harmonic Distortion 0.0 to 99.9 0.1 % ƒo F2 ---
0422
Winding 1 Phase C Total Harmonic Distortion 0.0 to 99.9 0.1 % ƒo F2 ---
0423
Winding 2 Phase A Total Harmonic Distortion 0.0 to 99.9 0.1 % ƒo F2 ---
0424
Winding 2 Phase B Total Harmonic Distortion 0.0 to 99.9 0.1 % ƒo F2 ---
0425
Winding 2 Phase C Total Harmonic Distortion 0.0 to 99.9 0.1 % ƒo F2 ---
0426
Winding 3 Phase A Total Harmonic Distortion 0.0 to 99.9 0.1 % ƒo F2 ---
0427
Winding 3 Phase B Total Harmonic Distortion 0.0 to 99.9 0.1 % ƒo F2 ---
0428
Winding 3 Phase C Total Harmonic Distortion 0.0 to 99.9 0.1 % ƒo F2 ---
0429 Reserved
↓↓ ↓ ↓↓↓ ↓
042F Reserved
HARMONIC
DERATING
0430 Winding 1 Harmonic Derating Factor 0.00 to 1.00 0.01 --- F3 ---
0431 Winding 2 Harmonic Derating Factor 0.00 to 1.00 0.01 --- F3 ---
0432 Winding 3 Harmonic Derating Factor 0.00 to 1.00 0.01 --- F3 ---
0433 Reserved
↓↓ ↓ ↓↓↓ ↓
043F Reserved
FREQUENCY 0440 System Frequency 0.00 to 99.99 0.01 Hz F3 ---
0441 Frequency Decay Rate –9.99 to 9.99 0.01 Hz/s F6 ---
0442 Reserved
↓↓ ↓ ↓↓↓ ↓
0444 Reserved
TAP CHANGER 0445 Tap Changer Position 1 to 50 1 --- F1 ---
0446 Reserved
↓↓ ↓ ↓↓↓ ↓
0448 Reserved
VOLTAGE 0449 System Line-to-Line Voltage 0.00 to 600.00 0.01 kV F3 ---
044A Volts-per-Hertz 0.00 to 4.00 0.01 V/Hz F3 ---
044B Line-to-Ntrl Voltage - Magnitude 0.00 to 600.00 0.01 kV F3 ---
044C Line-to-Ntrl Voltage - Angle 0 to 359 1 ° Lag F1
044D Reserved
↓↓ ↓ ↓↓↓ ↓
044F Reserved
CURRENT
DEMAND
0450 Demand Data Last Clear Date (2 registers) --- --- --- F23 ---
0452 Demand Data Last Clear Time (2 registers) --- --- --- F22 ---
0454 Winding 1 Phase A Current Demand --- --- A F78 ---
0455 Winding 1 Phase B Current Demand --- --- A F78 ---
Table 8–6: 745 MEMORY MAP (Sheet 14 of 57)
GROUP ADDR
(HEX)
DESCRIPTION RANGE STEP
VALUE
UNITS FORMAT
CODE
FACTORY
DEFAULT